Concrete-insert.



0.1. BRANCH.

. CONCRETE INSERT. APPLICATION FILED AUG-l3. I914. 1,14 8 Patented July 13, 1915.

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" Patented July 13, 1915.

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Specification of Letters Patent. Patented J 1115 13,1915,

Application filed August 13, 1914. Serial No. 858,531.

To all whom it may concern Be it known that 1, CHARLES J. BRANCH, a citizen of the United States, residing in the city of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented a new and useful Concrete-Insert, of

which the following is a specification.

In thev construction of buildings, or other structures, lILWlllCll the floors, walls, ceilings, or other components, are made of concrete or other cementitious material, usually built. or formed upon a temporary false "wooden framework upon or against which the concrete 1s set,-anchor1ng devices, va-

riously termed concrete inserts, insert supports, clamp-holders, or anchor blocks, are employed as the supporting means for bolts,

hangers, or other hold-fasts, for carrying pipeor other devices to be supported exteriorly of the finished concrete surface.

' The object ofmy invention as applicable to constructions of the foregoing character,

is to provide a simple, inexpensive, durable and effective, concrete insert or anchor block for receiving and retaining bolts, rods, bars,

or other hold-fast devices of varying forms and sizes.

With this object in view, my invention consists-in certain constructions," preferred forms of convenient modifications of which are typified in the accompanying drawings and hereinafter described and claimed.

p In the drawings the forms illustrating my invention are-those at present preferred by me since in practice they will give satisfactory and reliable results. It is, however, to be understoodthat the various elements of which my invention consists can be variously arranged and modified and that my invention is not limited to the precise arrangement and organization shown and described. v i

In the drawings, Figure 1 is a perspective view of' a preferred form of a convenient embodiment of my invention, in which the casing is madein two counterpart parts, the

device being represented in the position which it occupies when applied, for 1nstance, to a ceiling of a building. Fig. 2 is a side elevational view of one of the two component members ofthe casing shown in Fig. -l, the other being removed. Fig. 3 is a transverse sectional end elevational view on the dotted. line 00-00 .of Fig. 2. Fig. 4 is a side sectional elevational view of the insort in the position which it occupies when applied, for instance, to a wall of a build mg. Fig. 5 1s a view similar to Fig. 4 except that the insert is shown in the position which it occupies when applied to a floor of a building. In both Figs. 4 and 5, such modifications of detail as are necessary to permlt of the movement of the clamping blocks under positive and not gravitative hends a hollow casing having an opening,

within which are embodied converging channels to contain sliding, or otherwise movable, clamping blocks or kindred dea vices which cooperate and coact to receive and clamp or wedge between them a bolt or other hold-fast device adapted to be entered wlthin the casing and which may be of any preferred character form or diametric, di-

mension, so long as it be capable of intro duction through the opening in the casing into the interior thereof.

1 Referring to the drawings, the casing is shown as composed of two hollow parts 1 and 2, counterpart in character and conveniently adapted for connection by means I of two pairs of lugs 3 and 4 formed on them and united by bolts orscrews 5. It is, however, to be understood that the casing may be formed as an entirety and not in separable parts. i

The casing preferably possesses the flared or, so tospeak, conical form represented, in

{order the better to adapt it for retention within the concrete 19, and is formed with a hollow interior chamber 6, having an opening 7 through which the boltor other 'holdfast element tobe inserted and retained is entered. 5

The parts of the caslng which fiareaway from each other, are formed with internal channels 8 converging. with respect to each. I

other in the manner shown. 9 are a pair of slotted attaching lugs by means of which the insert as anentirety may, if desired, be

temporarily screwed or bolted to the false 7 wood work to hold it during its envelopment within the concrete and until the woodwork has been removed after the concrete has -set.

These attachinglugs 9 are simply devices of tended to receive andretain.

convenience, and the flanged bottom edges 10 of the casing may be slotted or perforated for screws, or overlapped by clamps, to serve a slmilar purpose. v

Within the channels 8 of the casing are inserted what I term clamping blocks 11, the same being longitudinally movable within.the channels and serving to clamp andhold the bolt or other hold-faster connecting device 12, which the insert is in- This bolt or connecting device 12 may, as

' -stated,'be of any desired form or diametric dimension so long as it be enterable with the "opening-1n the casing, and may, if desired,

be provided with a head, nut, or shouldered end 13-, of greater diameter than its shank orbody proper, or if desired, may be a rod of cylindric or other form, in which case the outer ends. of the clamping blocks are preferably formed with serrated or other clenching surfaces 15, as shown in Fig. 5.

When the insert occupies the position represented in Figs. 1, 2 and 3, and before the bolt or' .other connecting device has been entered within it, the clamping blocks will be dropped by their weight to the limit of within their/channels and prevent their falla. ing. out of the casing, some device for retaining. them and at the same time permitting of their motion, must be resorted to.

such downward movement as a stop. rod, herelnafter referredto, permits, and, uponthe entrance of the bolt, willbepushed up- Ivlva'rd and. inwar l until the head of. the bolt as ssed. between their lower. ends, after whic ll their weight will cause them to drop. downward past the bolt-head to the position represented in Figs. 2 and 3, in which position they will-clamp or'lock the bolt withinthe insert. I In order to. retain the clamping blocks Any stop device may be used. I find it convenient, however, to formthe blocks each in horseshoe-shape as represented in Call of the figures of the drawing except in Fig. 8, so that they each possess an openended bent-over or U-shape construction.

.In Fig.8, I represent them as being closed at both ends so thatthey are simply doubleended slotted blocks. It is to be understood, however, that the slot may not pass completely through them but be simply a side groove. I

In the horseshoe form, the stop device to which I refer to resortto prevent the blocks [from fa ing out of their channels, 1s a transverse stop rod=,14, conveniently arranged common to-both blocks and at its ends passing through" their slpttedbodies. This rod 1.; may be dropped in flthe 'notches 16 formed i'fldoing it makes it possible at small foundry partly in each memberof the casting of the casing; and one of the reasons I prefer to make the casing in two parts, is that byso the blocks. I

expense, not only to form Within it its 1101- l -low interiorchamber, its block'channels and the notches for the stop rod, but also'makes it possible and convenient to put and fasten; its two parts together u on and so as to in-:

the stop rod close the clamping bloc s and after they have been inserted.

As a substitute for the stop rod 14, I have trudes into each channel, is preferably cast within the casing, and serves to enter within e the slot .or groove in the clamping block and' in Fig. 6 shown a stop 17., one'of which proretainit free for movement but within the" casing. The device of the stop rod 14, there-,

fore, is simply one of convenience, and any other form of stop which'permits of movement of the blocks within their channels and clamping blocks will not be gravitative, as

in Figs. 1, 2 and 3, and that inorder to cause them to perform their function it will be necessary to urge them outwardly laterally or upwardly as may readily be done by inserting within their channels above their inner ends,- spiral springs 18, as their eX--' p'elling devices, as shown inFigs. 4:, 5 and 6.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A concrete insert, comprising a hollow casing embodying channels converging toward an opening into the casing, locking members slid'able in said channels .to con-'- verge toward each other, means for limitby said locking members.

2. A concrete insert, comprising a hollow casing embodying channels converging toward and opening into the casing, sliding ing the outward movement of said mem ber's, and an insertible device adapted to be inserted within the casing and clutched.

slotted blocks movable both inwardly and v A outwardly within said channels, and an insertible device adapted to be inserted through the opening into the casing and when inserted to be clutched and retained bythe blocks. V

3. A concrete insert, comprising a hollow casing embodying channels converging towardan opening into the casing, horse-shoe shaped blocks movable within said channels, and a connecting device adapted to be inserted through the opening into the casing and when inserted to be retained by 45. A concrete insert, comprisinga hollej casing embodying channels. converging t ward an opening into the casing, blocks long I gitudinally movable 'withinchannels'ju.

- sert'ed through the'opening into the casing and when insertedto be retained by the blocks.v 4

" be inserted through the opening intothe I casin 'and"when' inserted'to be retained by theb ocks.-

" casing embodying channels converging to-' ward an opening into the casing, blocks 5 A concrete insert,comprising a hollow icasing embodying channels converging toward an opening into the cas1I'1g,.horse-shoe shaped blocks movable within said channels, and .a headed connecting device. adapted to I 6. A concrete insert, comprising a hollow I convergingly slidable within saidchannels,

means forretaining the blocks within said .20

channels, and a headed connecting device adapted to be inserted through the opening into the casing and when insertedto be retained by the blocks.

7 A concrete insert, comprising a hollow casing embodying channels converging toward-an opening into the casing, horse-shoe.

shaped blocks movable withinsaid chanthe casing 'and when inserted to inels, a. st .of said Correction in Letters Patent No. 1,146,686.

p to limit the outward movement b ocks, and a connecting device adapted to be inserted through the opening into the casing and when insertedto be re-' tained by the loc f r [8. A concreteinsert, comprising a hollow casing embodying channels converging tomember;

9. A concrete insert, comprising a hollow casing embodying channels. converging toward an opening into the casing, sliding slotted locking members movable Within said channel, means for positively moving.

vice adapted to be inserted through the opening into the casing and .when inserted to be clutched by said locking members.

I -10.' A concrete insert, comprising" a hollow casing embodying channels converging toward an opening into the casing, slidinglocking members movable within said channel, means for positively moving said locking members outwardly toward theiopening into the casing, a stoglto limit the out ward movement of said ocks, and acon- .necting device adapted to be inserted v ward an opening into the casing, sliding locking members movable; within'v-said channel, meansf'or positively moving said locking members outwardly toward the opening in the casing,'and a connecting device adapted to be inserted through the opening into be clutched bysaid locking members. I

through the opening into the casing and when inserted to be clutched by said looking members. a

11. A concrete insert, comprising a hollow casing embodying channels converging toward an opening intothe casing, sliding slotted locking members movable within said channel, a stop operating with respect to the slots of said locking members, means for positively moving said locking members outwardly toward an opening in the casing, and a connecting device adapted to be inserted through the opening into the casing and when inserted-to beclutched' by said locking members.

In witness whereof, I have hereunto signed my name this 10th day of August,

A. D. 1914,. p 7 r I H RLES J. BRANCH. In the presence of- J. BONSALL TAYLOR, FAIRBANKS.

ltiis. hereby. certified that in LettersQ Patent No. 1,146,686, granted July- 13,

1915,, upon the application .of'Charles J. Branch,of l hiladelphia,Pennsylvania for an improvement in -.."Concrete-Inserts, an error appears the printed specification requiring correction as follows: Page 2, line-1 12, claim 2, .forthe word an read an; and that the said Letters Patentshould be readwith this correc-' tio'n therein that the same may conform to the recordof the case in the fatent J. T. NEwrroN,

Acting Commissioner of Patents. 

